Aquabeast

The monstrous Aquabeasts are gigantic sea-dwelling whale-like creatures that live in the cold waters of Europa, an ice-covered moon of Jupiter. They almost look like a whale crossed with a shark, but with ten eyes, twelve strong fins, and eight long, blue, biolumiscent tendrils. The creatures are carnivorous; they hunt the Glowsquids. Unlike the Glowsquids, Aquabeast skin isn't transparent.

The Aquabeasts are the dominant predator on Europa.